      *{
            margin: 0;
            padding: 0;
        }

        ul,ol,li{
            list-style: none;
        }

        a,a:hover,a:active{
            text-decoration: none;
        }

        img{
            display: block;
            width: 100%;
            height: 100%;
        }

        .clear::after{
            display: block;
            content:'';
            clear: both;
        }

        .banner{
            width: 1349px;
            height: 550px;
            margin: 10px auto;
            border: 1px solid rgba(15, 224, 196, 0.5);
            position: relative;
            overflow: hidden;
        }

        .banner>ul{
            width: 500%;
            height: 100%;
            position: absolute;
            top:0;
            left: 0;
        }

        .banner>ul>li{
            float: left;
            width: 1349px;
            height: 550px;
        }

        .banner>ol{
            height: 20px;
            position: absolute;
            bottom:5px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 20px;
            background: rgba(15, 224, 196, 0.5);
            display: flex;
            justify-content: center;
            align-items: center;
            
        }

        .banner>ol>li{
            width: 20px;
            height: 10px;
            border-radius: 5px;
            background: #fff;
            margin: 0 15px;
            cursor: pointer;
        }

        .banner>ol>li.active{
            opacity: 0.3;
            background: rgba(15, 224, 196, 0.5);
        
        }

        .banner>div{
            width: 100%;
            height: 50px;
            position: absolute;
            left: 0;
            top:50%;
            transform: translateY(-50%); 
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .banner>div>a{
            display: flex;
            justify-content: center;
            align-items: center;
            width: 50px;
            height: 50px;
            font-size: 30px;
            color: #fff;
            
        }
        .banner .anjian a{
            width: 60px;
            height: 60px;
            opacity: 0.3;
            background: rgba(15, 224, 196, 0.5);
            border-radius: 50%;
        }
